Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Oracle Community by 807593, 1 year ago
PainelPrincipal (wrong name: chat/PainelPrincipal)
via Google Groups by R@yZor, 2 years ago
HelloWorld (wrong name: helloworld)
via Oracle Community by 843835, 2 years ago
jdbcServlet (wrong name: jdbcservlet/jdbcServlet)
via Oracle Community by 807593, 1 year ago
jdbcServlet (wrong name: jdbcservlet/jdbcServlet)
java.lang.NoClassDefFoundError: PainelPrincipal (wrong name: chat/PainelPrincipal)	at java.lang.ClassLoader.defineClass0(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:486)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)